One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,6)(4,9)(5,8)(7,12)(10,13)(11,15)(14,16)(18,21)(20,24)(25,29)(28,30)(33,34,39,38)(35,40,45,43)(36,41,46,48)(37,47,44,42)(2,3)(7,9)(8,10)(14,15)(17,18,23,21)(19,24,27,20)(22,25,31,29)(26,30,32,28)(33,34,39,38)(35,43,45,40)(36,41,46,48)(37,42,44,47)(1,2,6,3)(4,7,12,9)(5,8,13,10)(11,14,16,15)(17,19,23,27)(18,24,21,20)(22,26,31,32)(25,30,29,28)(33,35,39,45)(34,40,38,43)(36,44,46,37)(41,42,48,47)(1,3,6,2)(4,9,12,7)(5,10,13,8)(11,15,16,14)(17,20)(18,19)(21,27)(22,30)(23,24)(25,32)(26,29)(28,31)(33,36)(34,41)(35,44)(37,45)(38,48)(39,46)(40,42)(43,47)(1,4,6,12)(2,7,3,9)(5,11,13,16)(8,14,10,15)(17,21,23,18)(19,20,27,24)(22,29,31,25)(26,28,32,30)(33,37,39,44)(34,42,38,47)(35,36,45,46)(40,48,43,41)(1,5,6,13)(2,8,3,10)(4,11,12,16)(7,14,9,15)(17,22)(18,25)(19,26)(20,28)(21,29)(23,31)(24,30)(27,32)(33,38,39,34)(35,43,45,40)(36,41,46,48)(37,47,44,42)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.